Vatican is officially a “permanent observer” in the UN. So if it’s a UN thing then the Vatican gets to “observe” the mess but not even vote. So “involved through the UN” for them is completely uninvolved.
Total fail of logic, they know full well the UN makeup and agendas, have seen the corruption as “observers” and fully aware of the antisemitism rife throughout the organization.
What you presented is the equivalent of “I knew he would murder that person, but I only watched,” therefor I am not accountable.
The Catholic leadership literally through their support to the UN, ergo they support the UN methods and positions.